Question 1. Creep. Using this LMP figure for S590 (Fe-21Cr-20Ni-20Co-4W-4Mo-4Nb-1.25Mn-0.4Si- 0.43C). What's the time to rupture at 200MPa and 800C? LMP =T (20 + log t,) %3!

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Question 1. Creep. Using this LMP figure for S590 (Fe-21Cr-20NI-20Co-4W-4Mo-4Nb-1.25MN-0.4Si-
0.43C). What's the time to rupture at 200MPA and 800C? LMP =T (20 + log t.)
T120 + log t,R-h)
25
30
35
40
45
50
x10 x10 x10 x10 x10 x10
1000
100,000
100
10,000
10
1,000
12
x10
16
x10
20
x10
24
x10
28
x10
T120 + log t,MK-h)
From F. R. Largon and J. Miller, Trans. ASME, 74, 1952,
p. 765. Reprinted by permission of ASME.
Stress (MPa)
(sd) ssans
Transcribed Image Text:Question 1. Creep. Using this LMP figure for S590 (Fe-21Cr-20NI-20Co-4W-4Mo-4Nb-1.25MN-0.4Si- 0.43C). What's the time to rupture at 200MPA and 800C? LMP =T (20 + log t.) T120 + log t,R-h) 25 30 35 40 45 50 x10 x10 x10 x10 x10 x10 1000 100,000 100 10,000 10 1,000 12 x10 16 x10 20 x10 24 x10 28 x10 T120 + log t,MK-h) From F. R. Largon and J. Miller, Trans. ASME, 74, 1952, p. 765. Reprinted by permission of ASME. Stress (MPa) (sd) ssans
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